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Muhammad Abdul AZIZ
Pusat Penelitian Bioteknologi dan Bioindustri Indonesia, Jl. Taman Kencana No. 1 Bogor, Indonesia 16128
Agriculture, Biological Sciences & Forestry

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Peningkatan kadar capsaicin tanaman Capsicum annuum cv. Lado pada kondisi kekeringan menggunakan kitosan Muhammad Abdul AZIZ; Sri WAHYUNI; Fenny Martha DWIVANNY; Rizkita Rachmi ESYANTI
E-Journal Menara Perkebunan Vol 89, No 2 (2021): Oktober, 2021
Publisher : INDONESIAN RESEARCH INSTITUTE FOR BIOTECHNOLOGY AND BIOINDUSTRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v89i2.423

Abstract

AbstrakCabai merah (Capsicum annuum) merupakan jenis sayuran yang memiliki nilai ekonomi tinggi. Saat kekeringan, kemampuan bertahan hidup tanaman tersebut sering kali menurun, sehingga diperlukan upaya untuk meningkatkan ketahanannya. Kitosan dikenal sebagai elisitor ketahanan tanaman terhadap infeksi patogen melalui induksi sintesis metabolit sekunder senyawa golongan fenol seperti capsaicin. Penelitian ini bertujuan untuk mengetahui pengaruh aplikasi kitosan 1 mg mL-1 terhadap peningkatan kadar capsaicin dan ekspresi gen PAL1 tanaman cabai merah cv. Lado pada kondisi kekeringan. Serial perlakuan terdiri dari kitosan (Chi), kombinasi kitosan dan kekeringan (Chi-D), kekeringan (D) dan kontrol (C) yang diaplikasikan saat tanaman memasuki fase generatif. Parameter yang diamati meliputi analisis ekspresi gen PAL1, aktivitas enzim PAL dan kadar capsaicin. Hasil penelitian menunjukkan bahwa aplikasi kitosan 1 mg mL-1 saat kekeringan menurunkan level ekspresi gen PAL1 0,61 kali dan aktivitas enzim PAL 0,94 kali dibanding kontrol. Sebaliknya, kadar capsaicin meningkat 2,46 kali dibandingkan kontrol, sehingga aplikasi kitosan 1 mg mL-1 saat kekeringan diduga dapat meningkatkan ketahanan tanaman tersebut terhadap infeksi patogen.
Pengaruh kitosan terhadap peningkatan level ekspresi WRKY17 dan WRKY53 tanaman Capsicum annuum cv. Laba pada kondisi kekeringan Muhammad Abdul AZIZ; Rizkita Rahmi ESYANTI; Fenny Martha DWIVANNY
E-Journal Menara Perkebunan Vol 88, No 2 (2020): Oktober,2020
Publisher : INDONESIAN RESEARCH INSTITUTE FOR BIOTECHNOLOGY AND BIOINDUSTRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v88i2.380

Abstract

Chitosan is known as the natural plant growth biostimulant and defense elicitor involving WRKY transcription factors in response to environmental stresses. However, either plant’s growth or defense responses against stress are different among the cultivars. In the previous study, chitosan and drought treatment combination on red chili plant cv. Lado resulted in the impeded growth performance followed by the down-regulated expression level of WRKY17. Hence, this study aimed to investigate the response of red chili plant from the different cultivar towards the combination of chitosan and drought treatments. At the onset of the generative phase, plants were subjected to the drought treatment with and without 1 mg mL-1 of chitosan application. Observation of plant growth performance was carried out by measuring plant height, the number of leaves, the conversion percentage of flowers developed to fruits, and the number of harvested fruits, while the molecular parameter was indicated by the analyses of WRKY17 and WRKY53 expression levels. In line with the previous study using cv. Lado, the combination of 1 mg mL-1 of chitosan and drought treatment significantly reduced the plant productivity observed in the number of fruits, followed by the plant height and the number of leaves. However, the expression level of WRKY17 and WRKY53 experienced 10 and 22-fold higher than controls, respectively. This is different from the previous study which showed the reduction of WRKY17 expression level. According to the study, it can be implied that the combination of chitosan and drought treatments on red chili plant cv. Laba could reduce plant growth performance, but increased genetics indicator towards plant’s defense system against stress indicated by the escalation of WRKY17 and WRKY53 expression level. Furthermore, the individual chitosan application are potential to increase the productivity of red chili plant cv. Laba. 
Pengaruh kitosan terhadap peningkatan level ekspresi WRKY17 dan WRKY53 tanaman Capsicum annuum cv. Laba pada kondisi kekeringan Muhammad Abdul AZIZ; Rizkita Rahmi ESYANTI; Fenny Martha DWIVANNY
Menara Perkebunan Vol. 88 No. 2 (2020): 88 (2), 2020
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v88i2.380

Abstract

Chitosan is known as the natural plant growth biostimulant and defense elicitor involving WRKY transcription factors in response to environmental stresses. However, either plant’s growth or defense responses against stress are different among the cultivars. In the previous study, chitosan and drought treatment combination on red chili plant cv. Lado resulted in the impeded growth performance followed by the down-regulated expression level of WRKY17. Hence, this study aimed to investigate the response of red chili plant from the different cultivar towards the combination of chitosan and drought treatments. At the onset of the generative phase, plants were subjected to the drought treatment with and without 1 mg mL-1 of chitosan application. Observation of plant growth performance was carried out by measuring plant height, the number of leaves, the conversion percentage of flowers developed to fruits, and the number of harvested fruits, while the molecular parameter was indicated by the analyses of WRKY17 and WRKY53 expression levels. In line with the previous study using cv. Lado, the combination of 1 mg mL-1 of chitosan and drought treatment significantly reduced the plant productivity observed in the number of fruits, followed by the plant height and the number of leaves. However, the expression level of WRKY17 and WRKY53 experienced 10 and 22-fold higher than controls, respectively. This is different from the previous study which showed the reduction of WRKY17 expression level. According to the study, it can be implied that the combination of chitosan and drought treatments on red chili plant cv. Laba could reduce plant growth performance, but increased genetics indicator towards plant’s defense system against stress indicated by the escalation of WRKY17 and WRKY53 expression level. Furthermore, the individual chitosan application are potential to increase the productivity of red chili plant cv. Laba. 
Peningkatan kadar capsaicin tanaman Capsicum annuum cv. Lado pada kondisi kekeringan menggunakan kitosan Muhammad Abdul AZIZ; Sri WAHYUNI; Fenny Martha DWIVANNY; Rizkita Rachmi ESYANTI
Menara Perkebunan Vol. 89 No. 2 (2021): 89 (2), 2021
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v89i2.423

Abstract

AbstrakCabai merah (Capsicum annuum) merupakan jenis sayuran yang memiliki nilai ekonomi tinggi. Saat kekeringan, kemampuan bertahan hidup tanaman tersebut sering kali menurun, sehingga diperlukan upaya untuk meningkatkan ketahanannya. Kitosan dikenal sebagai elisitor ketahanan tanaman terhadap infeksi patogen melalui induksi sintesis metabolit sekunder senyawa golongan fenol seperti capsaicin. Penelitian ini bertujuan untuk mengetahui pengaruh aplikasi kitosan 1 mg mL-1 terhadap peningkatan kadar capsaicin dan ekspresi gen PAL1 tanaman cabai merah cv. Lado pada kondisi kekeringan. Serial perlakuan terdiri dari kitosan (Chi), kombinasi kitosan dan kekeringan (Chi-D), kekeringan (D) dan kontrol (C) yang diaplikasikan saat tanaman memasuki fase generatif. Parameter yang diamati meliputi analisis ekspresi gen PAL1, aktivitas enzim PAL dan kadar capsaicin. Hasil penelitian menunjukkan bahwa aplikasi kitosan 1 mg mL-1 saat kekeringan menurunkan level ekspresi gen PAL1 0,61 kali dan aktivitas enzim PAL 0,94 kali dibanding kontrol. Sebaliknya, kadar capsaicin meningkat 2,46 kali dibandingkan kontrol, sehingga aplikasi kitosan 1 mg mL-1 saat kekeringan diduga dapat meningkatkan ketahanan tanaman tersebut terhadap infeksi patogen.
Co-Authors Fenny Martha DWIVANNY Fenny Martha DWIVANNY Rizkita Rachmi ESYANTI Rizkita Rahmi Esyanti Sri WAHYUNI